Assemble the wheel on a piece of threaded rod (Ø 20 mm) a minimal length of 210 mm, then thread each side and in this order:
– a 20 mm length piece of the tube dural or stainless of 27 X 21; these side spacers come to be pressed on the bearings of the wheel, to fix it in the center of the fork.
– a disc stainless Ø 20 mm
– an arm of fork by its holes of 20 mm
– a nut stainless Ø 20 mm
Very extremely tighten these two nuts by maintaining the arms of fork parallel, until ovalizing the arm of fork slightly (this will prevent inopportune desserages).
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Assembly of the steering column: